The combination of shirt and suit are good together, here s my assessment, fr what it is worth, of the remainder.
-shoes, they're nice but a slightly darker color or black would be better suited to wear with charcoal.
- tie, I'm not a fan of stripe on stripe, so I think a striped shirt begs for a Pin dot, or neat pattern. I'd shy from paisley with that shirt as well.
- pocket square, I dislike patterned squares so I would wear white linen. If a patterned square were nessecary I would attempt to find something that compliments the suit without directly pointing to the shirt and tie, but avoid contending with them. In this case, I would chose something dark, maybe even a dark paisley.
That being said, as mentioned in this thread, in MC is striving for western bourgeois excellent.